
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int comp(const void *, const void *);
unsigned char *list[] = { "cat", "car", "cab",
                          "cap", "can" };

int main()
    {
    int x;

    qsort(list, 5, sizeof(unsigned char *), comp);
    for (x = 0; x < 5; x++)
        printf("%s\n", list[x]);
    return 0;
    }

int comp(const void *a, const void *b)
    {
    unsigned **A = (unsigned char **)a;
    unsigned **B = (unsigned char **)b;
    return strcmp(*A, *B);
    }

